Lamp cover



FIG. 1 is a perspective view taken from the left side of the new design; FIG. 2 is a top plan view thereof; FIG. 3 is a front view thereof; FIG. 4 is a side view thereof; FIG. 5 is a rear view thereof; and, FIG. 6 is a bottom plan view thereof. The broken lines are shown for illustrative purposes only and form no part of the claimed design. 

We claim the ornamental design for a lamp cover, as shown and described. 